Update meteorite database: 1,180 meteorites

README.md

@@ -43,8 +43,8 @@ achondrites, iron meteorites) and recorded either as *falls* (witnessed descent)
 *finds* (recovered without observation).
 
 This dataset aggregates Wikidata entries for all entities of type Q60186 (meteorite), pulling
-structured properties including mass (P2067), fall date (P585), country (P17), coordinates
-(P625), and mineralogical class (P279). It complements NASA and Meteoritical Society
+structured properties including mass (P2067), fall/discovery date (P585/P575), country (P17),
+coordinates (P625), and mineralogical class (via P31 subclass hierarchy). It complements NASA and Meteoritical Society
 databases with Wikidata's multilingual, cross-linked knowledge graph.
 
 ## Schema
@@ -59,18 +59,17 @@ databases with Wikidata's multilingual, cross-linked knowledge graph.
 | `country` | string | Country of recovery |
 | `latitude` | float | Recovery latitude (decimal degrees) |
 | `longitude` | float | Recovery longitude (decimal degrees) |
-| `fall_or_find` | string | "Fall" (witnessed) or "Find" (unwitnessed recovery) |
 
 ## Quick stats
 
 - **1,180** meteorites total
 - **368** with recorded mass
 - **415** with geographic coordinates
+- **125** with classification
 - **55** countries of recovery
-- **0** falls, **0** finds
 - Heaviest: Allende meteorite (2,000,000 g)
 - Top countries: United States (39), Australia (13), Argentina (10), Germany (10), France (9)
-- Top classifications: 
+- Top classifications: iron meteorite (21), chondrite (17), H chondrite (17), L chondrite (11), ordinary chondrite (11)
 
 ## Usage
 
@@ -83,9 +82,6 @@ df = ds.to_pandas()
 # Heaviest meteorites
 print(df.nlargest(10, "mass_g")[["name", "mass_g", "country", "classification"]])
 
-# Falls vs finds
-print(df["fall_or_find"].value_counts())
-
 # Meteorites by country
 print(df["country"].value_counts().head(10))
 

data/meteorites.parquet

@@ -1,3 +1,3 @@
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+size 32076